What are the subkingdoms into which the plant kingdom is divided?
The kingdom Plantae is separated into two big subkingdoms: the bryophytes and the tracheophytes (pteridophytes, angiosperms and gymnosperms). The criterion for the division is the presence or not of conductive (vascular) tissue.
Plant Classification - Image Diversity: bryophytes pteridophytes gymnosperms angiosperms